Go back to having glimmer drop from every kill or add glimmer to bounties and increase the amount of glimmer that drops from kills that match your ghosts bonus ability. The new system where glimmer only drops if the kill is an enemy that your ghosts boost is stupid. Most low level enemies only drop 5 glimmer per kill with the ghost bonus, meaning for a single feature unlock on weapon/armor you have to grind through 100 kills.